Clay Buchholz threw well in his second rehab start for Triple-A Pawtucket on Thursday afternoon in Rochester N.Y.

Buchholz, who's been on the 15-day disabled list since May 28, threw six shutout innings, allowing two hits, two walks, hit a batter and struck out five. He threw 87 pitches, 51 for strikes. The PawSox ended up losing 8-6. Neither Shane Victorino or Will Middlebrooks played in the game.

All of Buchholz's strikeouts were swing-and-miss. He threw four no-hit innings before allowing back-to-back singles in the fifth. He got the next batter to strike out and then got a double play to end the inning.

In his last start with Pawtucket, Buchholz had given up three runs in 4.2 innings and threw just 62 pitches. Manager John Farrell said he wanted Buchholz to get to 90 pitches in this next rehab start.

Buchholz told WEEI.com's Rob Bradford he will join the Red Sox in Oakland, but it's unclear whether he will be activated.